JP6165174B2 - Head-mounted display device - Google Patents

Description

  The present invention relates to a head-mounted display device.

  Conventionally, as a head-mounted display device mounted on a human head, a display unit and an eyepiece optical unit are provided, and an image displayed on the display unit can be enlarged and observed as a virtual image by the eyepiece optical unit. Various things have been proposed. Since such a head-mounted display device is worn by an individual, it is desired that eye point adjustment and diopter adjustment can be performed according to the eye width of the wearer, the size of the head, visual acuity, and the like.

  In response to such a request, for example, the applicant of the present invention has a first housing having a display unit, a second housing capable of adjusting an optical path length, a third housing having an eyepiece optical unit, The second housing is slidable in the front-rear direction of the wearer with respect to the first housing, and the third housing is in the left-right direction of the wearer with respect to the second housing A head-mounted display device that is slidable is proposed (see Patent Document 1). According to the apparatus described in Patent Literature 1, the wearer slides in the front-rear direction of the second housing with respect to the first housing, and the wearer's left and right with respect to the second housing of the third housing. By sliding in the direction, eyepoint adjustment and diopter adjustment can be performed with a simple operation.

JP 2012-63633 A

  By the way, although the head-mounted display device may be desired to ensure a sufficient horizontal field of view depending on the usage situation, the device described in Patent Document 1 extends along the temple of the glasses. Since the first housing and the third housing having the eyepiece optical unit and located in front of the wearer's eyes are connected via the second housing, the left and right directions of the wearer In some cases, some of these cases are located in the field of view.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a head-mounted display device that can ensure the left-right view of the wearer.

The inventors have intensively studied to solve the above problems.
As a result, the inventors of the present invention have an incident optical axis of image light incident on the eyepiece optical unit from the display unit and an emission optical axis of image light emitted from the eyepiece optical unit toward the wearer's eyeball on the same plane. The angle between the incident optical axis and the exit optical axis is an acute angle, that is, the angle between the incident light vector and the exit light vector is an obtuse angle. As a result, new knowledge that the intended purpose can be advantageously achieved has been obtained, and the present invention has been completed.

This invention is made | formed based on said knowledge, The summary structure is as follows.
The head-mounted display device of the present invention has a rim portion, a glasses-type frame for fixing to a wearer's head, a display unit for displaying an image, and an image displayed on the display unit. An eyepiece optical unit that guides light to at least one eyeball of the wearer and displays it as an enlarged virtual image.The display unit and the eyepiece optical unit are attached to the rim unit, and are connected to the eyepiece from the display unit. An optical axis of incident light that is image light incident on the eye optical unit and an optical axis of emitted light that is image light emitted from the eyepiece optical unit toward the eyeball of the wearer are not on the same plane, and , the incident light vector form of the incident light, the angle between two vectors of the eggplant emitted light vector of the emitted light is much larger than 90 °,
The eyepiece optical unit is
A first reflecting surface for deflecting image light from the display unit in a forward direction of the wearer;
A second reflecting surface for deflecting image light from the first reflecting surface downward in the wearer;
And a third reflecting surface for deflecting image light from the second reflecting surface toward the eyeball of the wearer .
In this specification, “the angle formed by two vectors of the incident light vector formed by the incident light and the emitted light vector formed by the emitted light is greater than 90 °” means that the incident light is folded back as the emitted light. It means that the turning angle α to be ejected is smaller than 90 °.
According to this configuration, the image displayed on the display unit can be magnified and observed as a virtual image by the eyepiece optical unit while ensuring the left and right field of view of the wearer.
Moreover, it is because the image light from the display part attached to the rim | limb part can be light-guided to a wearer's eyeball, ensuring the front view of a wearer.

In the head-mounted display device of the present invention, an angle formed by two vectors of the incident light vector formed by the incident light and the emitted light vector formed by the emitted light is 95 ° or more and 120 ° or less. It is preferable that
It is because it can adapt to the shape of various spectacles by setting it as said range.

Furthermore, in the head-mounted display device of the present invention, the emission optical axis of the image light reflected by the third reflection surface is the image optical axis of the image light reflected by the first reflection surface. It is preferable to be inclined.
This is because the front view of the wearer can be secured by reflecting the image light from above the wearer toward the eyeball of the wearer.

Here, in the head-mounted display device of the present invention, the rim portion has at least one slide guide portion, and the display portion and the eyepiece optical portion are attached to the at least one slide guide portion. Preferably, the optical axis of the incident light and the sliding direction of the at least one slide guide portion are parallel to each other.
This is because the eye point can be adjusted by sliding the eyepiece optical unit parallel to the incident optical axis.

In the head-mounted display device of the present invention, it is preferable that the display unit and the eyepiece optical unit are slidable independently from each other on the at least one slide guide.
This is because diopter adjustment can be performed by adjusting the relative distance between the display unit and the eyepiece optical unit.

Furthermore, in the head-mounted display device of the present invention, it is preferable that at least one of the display unit and the eyepiece optical unit is detachable from the at least one slide guide unit.
This is because the display unit can be replaced with another display unit having a different display size, or can be replaced with an eyepiece optical unit having a different specification.

Furthermore, in the head-mounted display device of the present invention, it is preferable that the display portion has a shape along the extending direction of the top portion of the rim portion.
This is because the field of view of the wearer can be further secured.

In the head-mounted display device according to the aspect of the invention, the eyepiece optical unit may include a deflection prism having the first reflecting surface and an eyepiece prism having the second reflecting surface and the third reflecting surface. preferable.
By configuring the eyepiece optical unit to have the deflection prism and the eyepiece prism as described above, image light from the display unit attached to the rim unit is applied to the wearer's eyeball while ensuring the field of view of the wearer in front. This is because the light can be guided.

Furthermore, in the head-mounted display device of the present invention, the eyepiece prism incident light vector formed by the eyepiece prism incident light that is the image light incident on the eyepiece prism from the deflecting prism, and the eyepiece prism mounts the eyepiece. It is preferable that the angle formed by the two vectors with the eyepiece prism emission light vector formed by the eyepiece prism emission light, which is image light emitted toward the person's eyeball, is 165 ° or more.
This is because it is suitable that the angle is 165 ° or more in consideration of the movable range of human eyes.

  ADVANTAGE OF THE INVENTION According to this invention, the head mounted display apparatus which can ensure the wearer's left-right view can be provided.

1 is a perspective view showing a head-mounted display device according to an embodiment of the present invention. (A)-(d) It is a figure for demonstrating the prism used for an eyepiece eye part. (A) It is a top view of the spectacles type flame | frame of the head mounted display apparatus concerning other embodiment of this invention. (B) It is a top view of the head mounted display apparatus concerning other embodiment of this invention which shows a mode that the display part and the eyepiece optical part were attached to the spectacles type | mold flame | frame shown to (a). It is a partial top view which shows the principal part of the head mounted display apparatus concerning other embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Note that the drawings referred to in the following description are not necessarily shown to scale. Further, front, back, left, right, top, and bottom refer to the front, back, left, right, top, and bottom as viewed from the wearer with the glasses-mounted display device mounted on the head of the wearer. It shall be the direction.

FIG. 1 is a perspective view showing a head-mounted display device according to an embodiment of the present invention.
As shown in FIG. 1, the head-mounted display device 1 of the present embodiment has a front part 2a and a temple part 2b, and glasses for fixing the head-mounted display apparatus 1 to the head of the wearer. Frame 2, a display unit 3 for displaying an image, and an eyepiece optical unit 4 for guiding the image displayed on the display unit 3 to at least one eyeball of the wearer and displaying it as an enlarged virtual image. doing.
As shown in FIG. 1, the front part 2a of the spectacle-shaped frame 2 has two rim parts 21L and 21R for mounting the left and right lenses 20L and 20R, respectively, and the rim part 21L for the left eye. The rim portion 21 </ b> R for the right eye is connected by a bridge 22. Further, in the illustrated example, the rim portions 21L and 21R are composed of upper rim portions 21LU and 21RU and lower rim portions 21LL and 21RL, respectively. Moreover, as shown in FIG. 1, the front part 2a has armor parts 23L and 23R, and is connected to the temple part 2b through the armor parts 23L and 23R. In addition, the lenses 20L and 20R may be attached to the rim portions 21L and 21R, or the glasses-type frame 2 without a lens may be used.
In the example shown in FIG. 1, the display unit 3 and the eyepiece optical unit 4 are attached to the upper rim portion 21R on the right eye side (in the illustrated example, the top portion of the upper rim portion 21R is an attachment location). In the invention, the display unit 3 and the eyepiece optical unit 4 may be attached to the upper rim portion 21L on the left eye side.
In addition, the display part 3 shall have a small image display elements, such as a liquid crystal display panel and an organic EL display, for example.
Hereinafter, the eyepiece optical unit 4 will be described more specifically.

2A is a perspective view showing the prism 5 used for the eyepiece eye part 4, and FIG. 2B shows the prism 5 used for the eyepiece eye part 4 in the direction of the arrow in FIG. It is a top view when it sees from.
In the example shown in FIGS. 2A and 2B, the prism 5 receives the image light emitted from the display unit 3 and emits it toward the front of the wearer, and the prism 5 is emitted from the deflection prism 5a. It is combined with an eyepiece prism 5b that receives the image light and turns the image light back toward the wearer's eyeball. These are held by, for example, the same casing.
As shown in FIG. 2B, although not particularly limited, in this example, the height of the deflection prism 5a is 4 mm and the width of the eyepiece prism 5b is 4 mm in the plan view shown in FIG. is there.

FIG. 2C is a plan view showing a part of the deflection prism 5a and the eyepiece prism 5b. 2A to 2C, the deflection prism 5a is deflected by a transmission surface 5a1 on which the image light emitted from the display unit 3 is incident, and a reflection surface 5a2 that deflects the incident image light. A transmission surface 5a3 for emitting the image light to the eyepiece prism 5b. Further, as shown in the figure, the deflection prism 5a has two surfaces 5a4 and 5a5 that do not serve as image light reflecting surfaces in directions along the optical paths of incident light and outgoing light, respectively, and these surfaces are bent. They are connected (so that the inner angle becomes an obtuse angle). In the illustrated example, each of the surfaces 5a4 and 5a5 is formed as a light absorbing surface that absorbs unnecessary light such as stray light or ghost light. For example, the surface that has been subjected to sand surface treatment is painted black. Can do.
The deflection angle by the deflecting prism 5a is 90 ° or less (70 ° in the illustrated example).
Here, as shown in FIG. 2C, the ridge line portion between the transmission surface 5a1 and the reflection surface 5a2 is subjected to surface treatment, and the ridge line portion between the reflection surface 5a2 and the transmission surface 5a3 is also processed. The same surface treatment is performed. This is because the luminous flux of the image light emitted from the display unit 3 does not reach these ridge lines. As the surface treatment performed here, for example, a graining process, a chamfering process, a sanitizing process, or a process combining these can be performed. By the surface treatment as described above, unnecessary light such as stray light and ghost light can be removed.
According to the deflecting prism 5a shown in FIG. 2C, the optical axis of the image light incident from the display unit 3 is bent once by the reflecting surface 5a2 and deflected in the forward direction of the wearer.
The dimensions of the deflecting prism 5a are not particularly limited. In the plan view shown in FIG. 2C, in this example, the lengths of the transmission surface 5a1 and the transmission surface 5a3 are 6 mm, and the light is emitted from the display unit 3. The distance until the optical axis of the image light reaches the reflection surface 5a2 is 6 mm, the distance until the optical axis of the image light reflected by the reflection surface 5a2 reaches the transmission surface 5a3, and as described above, the eyepiece prism The width of 5b is 4 mm.
In the present invention, the display unit 3 has a protective window (or filters) so that the image light emitted from the display element is incident on the deflecting prism 5a after passing through the protective window. It can also be.

FIG. 2D is a plan view showing a part of the eyepiece prism 5b and the deflecting prism 5a. As shown in FIGS. 2A, 2B, and 2D, the eyepiece prism 5b includes a surface 5b1 including a transmission surface 5b11 on which the image light from the deflection prism 5a is incident, and the incident image light on the spectacle frame. The reflective surface 5b2 that deflects in the downward direction of the wearer in the state where the wearer 2 is worn, the reflective surface 5b3 that deflects in the direction of the eyeball of the wearer, and the image light reflected by the reflective surface 5b3 are emitted toward the eyeball of the wearer. And a transmission surface 5b4. Here, the surface 5b1 (a portion excluding the transmission surface 5b11) is a surface that does not serve as an image light reflecting surface, and the eyepiece prism 5b also includes a surface 5b5 that faces the surface 5b11 and does not serve as an image light reflecting surface. Yes. The surface 5b1 and the surface 5b5 are formed as light absorbing surfaces that absorb ghost light, and can be formed, for example, by painting a surface subjected to sand surface treatment in black. The image light may be reflected and guided by at least one of the surfaces 5b1 and 5b5. In this case, the surfaces 5b1 and 5b5 are formed as reflecting surfaces.
According to the eyepiece prism 5b shown in FIG. 2 (d), the optical axis of the image light emitted from the deflecting prism 5a and incident on the eyepiece prism 5b is bent twice by the reflecting surfaces 5b2 and 5b3 to be worn by the wearer. Directed to the eyeball. More specifically, the optical axis of the image light emitted from the deflecting prism 5a and incident on the eyepiece prism 5b is bent from the upper side to the lower side by the reflecting surface 5b2, and then is reflected on the wearer's eyeball by the reflecting surface 5b3. And bent from the front to the rear.
In addition, the size of the eyepiece prism 5b is not particularly limited. However, in the plan view shown in FIG. 2D, in this example, the width of the transmission surface 5b1 is 4 mm, and the optical axis of the image light reflected by the reflection surface 5b2 Is 13 mm, the distance until the optical axis of the image light reflected by the reflecting surface 5a3 reaches the transmitting surface 5b4 is 3 mm, and the width of the transmitting surface 5b4 is 4 mm.
In the illustrated example, the transmission surface 5b4 of the eyepiece prism 5b has a convex shape in the direction in which the image light is emitted and has a positive refractive power.
In the illustrated example, the eyepiece prism incident light vector formed by the eyepiece prism incident light, which is the image light incident on the eyepiece prism 5b from the deflecting prism 5a, and the image light emitted from the eyepiece prism 5b toward the wearer's eyeball. An angle formed by two vectors with an eyepiece prism emission light vector formed by a certain eyepiece prism emission light is 168 °. In other words, as shown in FIG. 2D, the turning angle β at which the eyepiece prism incident light is turned back and emitted as the eyepiece prism exit light is 12 °. Thus, in the present invention, in consideration of the movable range of the human visual line, the angle formed by the two vectors of the eyepiece prism incident light vector and the eyepiece prism exit light vector is 165 ° or more and 185 ° or less (that is, The angle β is preferably 5 ° or more and 15 ° or less.
Here, according to the prism 5, the plane including the optical axis passing through the deflection prism 5a and the plane including the optical axis passing through the eyepiece prism 5b do not form the same plane. It has a different plane.
The prisms shown in FIGS. 2A to 2D are formed by combining the deflection prism 5a and the eyepiece prism 5b, which are separate parts, but an integrally formed prism may be used.

According to the head-mounted display device 1 shown in FIG. 1 provided with the eyepiece optical unit 4 having the prism 5 described above, it enters the eyepiece optical unit 4 from the display unit 3 as shown in FIG. The optical axis of incident light that is image light and the optical axis of emitted light that is image light emitted from the eyepiece optical unit 4 toward the eyeball of the wearer are not on the same plane (on different planes), They are in a twisted position relative to each other. Furthermore, the angle formed by the two vectors of the incident light vector formed by the incident light and the emitted light vector formed by the emitted light is greater than 90 ° (that is, as shown in FIG. 2C, the angle α is 90 Less than °).
Hereinafter, functions and effects of the head-mounted display device of the present embodiment will be described.

According to the head-mounted display device 1 of the present embodiment, first, the display unit 3 and the eyepiece optical unit 4 are attached to the upper rim unit 21 instead of the temple unit 2b of the eyeglass-type frame 2. It is possible to secure the left and right field of view of the wearer. In addition, since the display unit 3 and the eyepiece optical unit 4 are both attached to the upper rim portion 21 (in the same place), the head-mounted display device 1 can be made compact and lightweight. Design can also be secured.
Furthermore, according to the head-mounted display device 1 of the present embodiment, the incident optical axis of the image light that enters the eyepiece optical unit 4 from the display unit 3 and the eyepiece optical unit 4 emits it toward the wearer's eyeball. Since the exit optical axis of the image light is not on the same plane, and the angle formed by the two vectors of the incident light vector formed by the incident light and the emitted light vector formed by the emitted light is greater than 90 °. The image light from the display unit 3 attached to the upper rim portion 21 of the mold frame 2 can be emitted from the vicinity of the front direction of the wearer toward the wearer's eyeball along the shape of the eyeglass mold frame 2. it can. Therefore, the wearer can enlarge and observe the image displayed on the display unit 3 as a virtual image by the eyepiece optical unit 4.

Here, in the present invention, the angle formed by the two vectors of the incident light vector formed by the incident light and the emitted light vector formed by the emitted light is preferably 95 ° or more and 120 ° or less.
This is because, by setting the above range, the above-described effects can be achieved in various spectacle shapes including a spectacle-shaped frame such as sunglasses.

Next, a further configuration of the head-mounted display device for performing eyepoint adjustment and diopter adjustment in the present invention will be described.
FIG. 3A is a top view of the eyeglass-type frame 2 of the head-mounted display device 1 according to another embodiment of the present invention, and FIG. 3B is the eyeglass-type shown in FIG. It is a top view of the head mounted display apparatus 1 concerning other embodiment of this invention which shows a mode that the display part 3 and the eyepiece optical part 4 were attached to the flame | frame 2. FIG.
The head-mounted display device 1 of this embodiment is the embodiment shown in FIG. 1 described above in that the glasses-type frame 2 includes at least one slide guide portion 6 on the upper rim portions 21L and 21R. Different from the ones.
First, the spectacle-type frame 2 that is a component of the head-mounted display device 1 according to this embodiment will be described. As shown in FIG. 3A, the spectacle-type frame 2 includes the upper rim portions 21LU and 21RU. At the top, at least one slide guide portion 6 is provided. In the illustrated example, the upper rim portion 21RU guides the display portion slide portion 6a to which the display portion 3 for displaying an image can be slidably attached and the image displayed on the display portion 3 to at least one eyeball of the wearer. And an eyepiece optical part slide part 6b to which the eyepiece optical part 4 that illuminates and displays as an enlarged virtual image can be slidably attached.
Moreover, in the example of illustration, the display part slide part 6a and the eyepiece part slide part 6b are linear shapes.
In this embodiment, the slide guide 6 is formed by providing guide grooves in the upper rim portions 21LU and 21RU, and the display portion 3 and the eyepiece optical portion 4 are engaged with the guide grooves and slid. However, the present invention is not limited to this example, and the slide guide 6 can be formed by any known method.

As shown in FIG. 3B, in the head-mounted display device 1 of this embodiment, the display unit 3 and the eyepiece optical unit 4 are attached to at least one slide guide unit 6, and in the illustrated example, The display part 3 is attached to the display part slide part 6a on the right eye side, and the eyepiece optical part 4 is attached to the eyepiece optical part slide part 6b on the right eye side.
Here, the incident optical axis of the image light incident on the eyepiece optical unit 4 from the display unit 3 is the slide of the at least one slide guide unit 6 (in the illustrated example, the display unit slide unit 6a and the eyepiece optical unit slide unit 6b). Parallel to the direction.
In this example, not only the upper rim portion 21RU on the right eye side to which the display unit 3 and the eyepiece optical unit 4 are attached, but also the upper side on the left eye side to which the display unit 3 and the eyepiece optical unit 4 are not attached. Similarly, the rim portion 21LU is provided with a display portion slide portion 6a and an eyepiece optical portion slide portion 6b.

  According to the configuration of this embodiment, the eyepiece optical unit 4 attached to the eyepiece optical unit slide unit 6b can be slid in parallel to the incident optical axis, so that the eye width of the wearer, the size of the head, etc. You can also adjust the eye point.

Further, as shown in FIGS. 3A and 3B, the display unit 3 and the eyepiece optical unit 4 include at least one slide guide unit 6 (in the illustrated example, the display unit slide unit 6a and the eyepiece optical unit slide, respectively). It is preferable that they can slide independently of each other on the part 6b).
As a result, the display unit 3 is slid to adjust the relative distance between the display unit 3 and the eyepiece optical unit 4, thereby displaying the display image at an image distance that matches the wearer's visual acuity and adjusting the diopter. Because it can be done.
At this time, the display unit slide unit 6a for sliding the display unit 3 and the eyepiece optical unit slide unit 6b for sliding the eyepiece optical unit 4 are both parallel to the incident optical axis. In adjusting the relative distance, the incident optical axis does not shift.

In the embodiment shown in FIGS. 3A and 3B, at least one of the display unit 3 and the eyepiece optical unit 4 is preferably detachable from at least one slide guide unit 6. For example, the display unit 3 is The display unit slide unit 6a can be attached to and detached from the end of the display unit slide unit 6a, and the eyepiece optical unit 4 can be attached to and detached from the eyepiece optical unit slide unit 6b from the end of the eyepiece optical unit slide unit 6b. It can be configured to be.
By making the display unit 3 detachable from the display unit slide unit 6a, the display unit 3 can be replaced with another display unit having a different display size. Even in this case, since the display unit 3 can be slid by the display unit slide unit 6a, diopter adjustment can be performed in accordance with the display size of the display unit 3 after replacement.
In addition, by making the eyepiece optical unit 4 detachable from the eyepiece optical unit slide unit 6b, for example, the eyepiece optical unit 4 can be replaced with an eyepiece optical unit 4 having different specifications (for example, different specifications such as focal length, optical path length, and magnification) The display image can be observed by changing the display angle of view. Even in this case, the diopter can be adjusted by sliding the display unit 3 with the display unit slide unit 6a and adjusting the relative distance between the display unit 3 and the eyepiece optical unit 4.

FIG. 4 is a partial top view showing a main part of a head-mounted display device according to another embodiment of the present invention.
The head-mounted display device shown in FIG. 4 is provided with only one slide guide unit 6, and the display unit 3 and the eyepiece optical unit 4 are slidably attached to the single slide guide unit 6. This is different from the head-mounted display device according to the embodiment shown in FIGS.
In other words, in the example illustrated in FIG. 4, the display unit slide unit and the eyepiece unit slide unit are integrally formed so as to be connected in a straight line to form one slide guide unit 6.
Also in this case, the sliding directions of the display unit 3 and the eyepiece optical unit 4 that can be slid by the slide guide unit 6 are both parallel to the incident optical axis of the image light from the display unit 3.
Therefore, according to the head-mounted display device of the embodiment shown in FIG. 4, eye point adjustment and diopter adjustment can be performed as in the embodiment shown in FIGS.

In the head-mounted display device of the embodiment shown in FIGS. 1, 3A, 3B, and 4, the display unit slide unit 6a and the eyepiece unit slide unit 6b have two slide directions. The inclination angle with respect to the line connecting the eyeballs is preferably 10 ° to 30 °. However, the inclination angle is an acute angle.
This is because, by tilting at the above-mentioned angle, it is possible to form a linear slide orbit along various spectacle shapes including a spectacle-shaped frame such as sunglasses.

In the head-mounted display device of the present invention, it is preferable that the display unit 3 has a shape along the extending direction of the top portions of the upper rim portions 21R and 21L.
This is because the field of view of the wearer can be further ensured by matching the shape of the display unit 3 with the shape of the glasses-type frame 2.

As mentioned above, although embodiment of this invention was described, this invention is not limited to said embodiment at all. For example, in the above description, the head-mounted display device for the right eye has been described, but the head-mounted display device of the present invention is configured not only for the right eye but also for the left eye. Or it can be configured for both eyes.
Further, for example, in the present invention, when the slide guide is provided on the upper rim portion, it can be provided on only one of the left and right sides, or on both sides. When slide guides are provided on both the left and right sides of the upper rim, the display unit and the eyepiece optical unit can be slidably mounted by selecting either the left or right side according to the wearer's preference, or The display unit and the eyepiece optical unit can be slidably attached to both.
Further, since the image is observed as a see-through image through which the background can be seen, the width of the eyepiece optical unit can be made smaller than 4 mm which is the pupil diameter in a normal human environment.

  ADVANTAGE OF THE INVENTION According to this invention, the head mounted display apparatus which can ensure the wearer's left-right view can be manufactured and can be provided to a market.

DESCRIPTION OF SYMBOLS 1 Head mounted type display apparatus 2 Eyeglass type frame 3 Display part 4 Eyepiece optical part 5 Prism 5a Deflection prism 5b Eyepiece prism 6 Slide guide part 6a Display part slide part 6b Eyepiece part slide part 7 Eyeball

Claims (9)

A spectacle-shaped frame having a rim portion and fixed to the head of the wearer;
A display for displaying an image;
A head-mounted display device having an eyepiece optical unit that guides an image displayed on the display unit to at least one eyeball of a wearer and displays the image as an enlarged virtual image,
The display unit and the eyepiece optical unit are attached to the rim unit,
An optical axis of incident light that is image light incident on the eyepiece optical unit from the display unit and an optical axis of emission light that is image light emitted from the eyepiece optical unit toward the eyeball of the wearer are the same. not on the plane, and the eggplant incident light vector of the incident light, the angle between two vectors of the eggplant emitted light vector of the emitted light is much larger than 90 °,
The eyepiece optical unit is
A first reflecting surface for deflecting image light from the display unit in a forward direction of the wearer;
A second reflecting surface for deflecting image light from the first reflecting surface downward in the wearer;
A head-mounted display device comprising: a third reflective surface that deflects image light from the second reflective surface toward the eyeball of the wearer.   2. The head according to claim 1, wherein an angle formed by two vectors of an incident light vector formed by the incident light and an emitted light vector formed by the emitted light is 95 ° or more and 120 ° or less. Wearable display device. Exit optical axis of the reflected image light by the third reflection surface and being inclined with respect to image light axis of the image light reflected by said first reflecting surface, to claim 1 or 2 The head-mounted display device described. The rim portion has at least one slide guide portion,
The display unit and the eyepiece optical unit are attached to the at least one slide guide unit,
The optical axis of the incident light and the sliding direction of said at least one slide guide portion, characterized in that it is a parallel, head-mounted display device according to any one of claims 1-3. The head-mounted display device according to claim 4 , wherein the display unit and the eyepiece optical unit are slidable independently from each other on the at least one slide guide. Wherein at least one of the display portion and the eyepiece optical unit is characterized in that the detachable at least one slide guide portion, the head-mounted display device according to claim 4 or 5. The head-mounted display device according to any one of claims 1 to 6 , wherein the display unit has a shape along an extending direction of a top portion of the rim unit. The eyepiece optical unit is
A deflecting prism having the first reflecting surface;
Head-mounted display device according to any one of claims 1 to 7, characterized in that comprising a second reflecting surface and the eyepiece prism having a third reflecting surface. An eyepiece prism incident light vector formed by an eyepiece prism incident light that is an image light incident on the eyepiece prism from the deflection prism, and an eyepiece prism emission light that is an image light emitted from the eyepiece prism toward the eyeball of the wearer. The head-mounted display device according to claim 8 , wherein an angle formed by two vectors with an eyepiece prism emission light vector formed by is 165 ° or more.

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